With their maximum working temperature of up to 300 °C and forced air circulation, the ovens achieve a perfect temperature uniformity which is much better than in ovens of most competitors. They can be used for various applications such as e.g. drying, sterilizing or warm storing. Ample warehousing of standard models provides for short delivery times.

• Tmax 300 °C
• Working range: + 5 °C above room temperature up to 300 °C
• Models TR 60 - TR 240 designed as tabletop models
• Models TR 450 and TR 1050 designed as floor standing models
• Horizontal, forced air circulation results in temperature uniformity better than ∆T 8 K
• Stainless steel chamber, alloy 304 (AISI)/(DIN material no. 1.4301), rust-resistant and easy to clean
• Large handle to open and close the door
• Charging in multiple layers possible using removeable grids (number of removeable grids included, see table to the right)
• Large, wide-opening swing door, hinged on the right with quick release for models TR 60 - TR 450
• Double swing door with quick release for TR 1050
• TR 1050 equipped transport rollers
• Infinitely adjustable exhaust at the rear wall with operation from the front
• PID microprocessor control with self-diagnosis system
• Solid state relays provide for low­noise operation

Additional equipment

• Over-temperature limit controller with manual reset for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
• Infinitely adjustable fan speed of the air circulation fan
• Window for charge observing
• Further removeable grids with rails
• Side inlet
• Stainless steel collecting pan to protect the furnace chamber
• Safety Technology according to EN 1539 for charges containing liquid solvents up to model TR 240, achievable temperature uniformity ∆T 16 K
• Transport costors for model TR 450
• Various modifications available for individual needs
• Upgrading available to meet the quality requirements of AMS 2750 D or FDA
• Process control and documentation with Controltherm MV software package

These chamber furnaces with air circulation are characterized by their extremely high temperature uniformity. Hence, they are especially suitable for processes such as cooling, crystalizing, pre-heating, curing, but also for numerous processes in tool making. Due to the modular concept, the furnaces can be adjusted to the process requirements by adding suitable equipment.

• Tmax 450 °C, 650 °C, or 850 °C
• Horizontal air circulation
• Swing door hinged on the right
• Temperature uniformity up to ∆T 8 K according to DIN 17052-1
• Heating from bottom, sides and top
• Optimum air flow and temperature uniformity through high circulation rates
• One shelf and rails for two additional shelves included (N 15/65 HA without removable tray)
• Air baffle box of stainless steel inside the furnace chamber for optmum air circulation
• Base frame included in the delivery, N 15/65 HA designed as table-top model
• Switchgear with solid-state relays

Specific heat treatment processes require the reduction of particle contamination in the furnace chamber and on the work floor down to a minimum. For these applications the NAC air circulation chamber furnaces are recommended. The inner chamber is made of stainless steel and offers best possible protection against impurities from the insulation. Depending on design and required clean room class these furnaces can be equipped accordingly.

• Tmax 650  °C
• Standard sizes between 120 and 500 liters furnace volume
• Customized dimensions, also available as production-scale furnaces up to 10000 l (KTR models)
• Dual shell housing provides for low surface temperatures
• Insulation made of mineral wool with aluminum protection cover provides for low emissions to the outside
• Welded inner housing made of stainless steel 1.4301
• Door with silicone sealing
• Horizontal airflow incl. air-guiding box provides for optimum temperature uniformity
• Tubular heating elements positioned behind the air-guiding box
• One shelf included in the delivery

Additional equipment

• Silicone-free design with door sealing made of Viton
• Electro-polished inner box
• Electrically driven air inlet and air outlet flaps
• Cooling system for reduction of process times
• Observation window in the door
• Manual or automatic gas supply systems
• Speed control for air-circulation fan
• Additional shelves
• Process control and documentation with Controltherm MV software package